KFA6-SR2-Ex2.W.IR Switch Amplifier Connection

Switch Amplifier

Features

• 2-channel isolated barrier

• 230 V AC supply

• Dry contact or NAMUR inputs

• Latching relay output

• Line fault detection (LFD)

• Reversible mode of operation

Function

This isolated barrier is used for intrinsic safety applications. It has a latching relay (bistable operation) for level control, pump up/pump down, or other switch/logic applications. The device is set by an active signal on input I and is reset by an active signal on input II. The mode of operation of inputs I and II can be programmed.

Switch S3 is used to enable or disable line fault detection of the field circuit. During an error condition or loss of power, the form C changeover relays revert to their de-energized state and the LEDs indicate the fault according to NAMUR NE44.

When the wiring fault is corrected, the relay will revert to the state prior to the fault.

If the device is re-energized after power loss, the relays return to a factory-configured state.

Assembly

Front view

LED yellow:

Relay output ( Ι)

LED red:

LB/SC input Ι

LED yellow:

Relay output ( ΙΙ)

LED red:

LB/SC input ΙΙ

KFA6-SR2-Ex2.W.IR

Removable terminals blue

1

4

2

5

3

6


S1

S2

S3

1

2

OUT CHK PWR

I II

7

10

13

8

11

14

9

12

15

LED green:

Power supply

Switch S1

(mode of operation input

Ι)

Switch S2

(mode of operation input ΙΙ)

Switch S3

(LB/SC-monitoring)

Removable terminals green

Connection

I

II

10 kΩ

400 Ω ≤ R ≤ 2 kΩ

10 kΩ

10 kΩ

400 Ω ≤ R ≤ 2 kΩ

10 kΩ

4+

5+

6-

1+

2+

3-

KFA6-SR2-Ex2.W.IR

7

8

9

I

10

11

12

II

14

15

230 V AC

Zone 0, 1, 2

Div. 1, 2

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

Pepperl+Fuchs Group www.pepperl-fuchs.com

USA: +1 330 486 0002 [email protected]

Germany: +49 621 776 2222 [email protected]

Singapore: +65 6779 9091 [email protected]

1

Technical data KFA6-SR2-Ex2.W.IR

General specifications

Signal type

Supply

Connection

Rated voltage

Power consumption

U r

Digital Input terminals 14, 15

207 ... 253 V AC, 45 ... 65 Hz

≤ 1.5 W

Input

Connection

Rated values terminals 1+, 2+, 3-; 4+, 5+, 6acc. to EN 60947-5-6 (NAMUR)

Open circuit voltage/short-circuit current approx. 8 V DC / approx. 8 mA

Line fault detection breakage I ≤ 0.1 mA , short-circuit I > 6 mA

Pulse/Pause ratio ≥ 10 ms / ≥ 10 ms

Output

Connection

Output I, II

Contact loading

Energized/De-energized delay

Mechanical life

Transfer characteristics

Switching frequency

Galvanic isolation output I: terminals 7, 8, 9 ; output II: terminals 10, 11, 12 signal ; relay

253 V AC/2 A/cos φ > 0.7; 126.5 V AC/4 A/cos φ > 0.7; 40 V DC/2 A resistive load approx. 20 ms / approx. 20 ms

10

7

switching cycles

≤ 10 Hz

Input/Output

Input/power supply

Output/power supply

Output/Output

Directive conformity

Electromagnetic compatibility

Directive 2014/30/EU

Low voltage


Conformity

Electromagnetic compatibility

Degree of protection reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V eff reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V eff reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V eff reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V eff

EN 61326-1:2013 (industrial locations)

EN 61010-1:2010

NE 21:2006

IEC 60529:2001

Ambient conditions

Ambient temperature

Mechanical specifications

Degree of protection

Mass

Dimensions

Mounting

Data for application in connection with hazardous areas

EU-Type Examination Certificate

Marking

Input

Voltage U o

Current I o

Power P o

Supply

Maximum safe voltage

Output

Contact loading

Maximum safe voltage

Galvanic isolation

Input/input

Input/Output

Input/power supply

Directive conformity


International approvals

FM approval

Control drawing

U m

U m

-20 ... 60 °C (-4 ... 140 °F)

IP20 approx. 150 g

20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) , housing type B2 on 35 mm DIN mounting rail acc. to EN 60715:2001

PTB 00 ATEX 2081

¬

II (1)G [Ex ia Ga] IIC

¬

II (1)D [Ex ia Da] IIIC

¬

I (M1) [Ex ia Ma] I

Ex ia

10.6 V

19.1 mA

51 mW (linear characteristic)

253 V AC (Attention! U m

is no rated voltage.)

253 V AC/2 A/cos φ > 0.7; 126.5 V AC/4 A/cos φ > 0.7; 40 V DC/2 A resistive load

253 V AC (Attention! The rated voltage can be lower.) not available safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V

EN 60079-0:2012+A11:2013 , EN 60079-11:2012

116-0035






2

Technical data

UL approval

Control drawing

CSA approval

Control drawing

IECEx approval

Approved for

General information

Supplementary information


116-0145

116-0047

IECEx PTB 11.0031

[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I

EC-Type Examination Certificate, Statement of Conformity, Declaration of Conformity, Attestation of

Conformity and instructions have to be observed where applicable. For information see www.pepperlfuchs.com.






3

Technical data

Configuration

1

4

2

5

3

6

S1

S2

S3

1

2

OUT CHK PWR

7

10

13

8

11

14

9

12

15

S1

S2

S3

I II


Switch position

S

1

2

3

Mode of operation

Output I (relay) energized

Mode of operation

Output II (relay) energized

Line fault detection

Function with high input current with low input current with high input current with low input current

ON

OFF

Operating status

Control circuit

Initiator high impedance/ contact opened

Initiator low impedance/ contact closed

Lead breakage, lead short-circuit

Factory settings: switch 1, 2 and 3 in position I

Input signal low input current high input current

Line fault

Position

I

II

I

II

I

II






4

KFA6-SR2-Ex2.W.IR Switch Amplifier Connection

Features

Function

Assembly

Connection

Configuration

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